The Supreme Court has the responsibility to interpret and explain the Constitution. To do that, it hears cases under its original jurisdiction and its appellate jurisdiction.
A main power of the Supreme Court is judicial review. This is the ability of the Court to decide that a legislative or executive act violates the Constitution.
Explanation: trust me on this because i got a 100 on the assignment.
As the final arbiter of the law, the Court is charged with ensuring the American people the promise of equal justice under law and, thereby, also functions as guardian and interpreter of the Constitution. The Supreme Court is "distinctly American in concept and function," as Chief Justice Charles Evans Hughes observed.
He begins his warnings to the American people by stressing that their independence, peace at home and abroad, safety, prosperity, and liberty are all dependent upon unity among the states.